Currently,cyberspace has become the"first environment"for college students to study,work,and live.A good online public opinion ecology has a positive promoting effect on the cultivation of college students'integrity concepts and integrity behaviors.The article combines the connotation and significance of integrity education for college students,based on the perspective of public opinion ecological governance,and analyzes the performance of college students'integrity behavior.By promoting the construction of college students'integrity education file system,evaluation system,management system,institutional system,and classroom system,it optimizes the construction of college students'integrity education system,which plays an important role in enhancing social public opinion ecological governance,integrity system construction,and improving the quality of college talent cultivation.